Antiretroviral Therapy, Highly ActiveHIV InfectionsAnti-HIV AgentsAnti-Retroviral AgentsCD4 Lymphocyte CountViral LoadHIV-1HIVAcquired Immunodeficiency SyndromeReverse Transcriptase InhibitorsDrug Resistance, ViralHIV Protease InhibitorsAIDS-Related Opportunistic InfectionsSouth AfricaMedication AdherenceRNA, ViralStavudineZidovudineNevirapineBenzoxazinesInfectious Disease Transmission, VerticalDrug Therapy, CombinationCohort StudiesHIV-Associated Lipodystrophy SyndromeRitonavirHIV SeropositivityPatient ComplianceImmune Reconstitution Inflammatory SyndromeUgandaViremiaLopinavirLamivudineOrganophosphonatesCD4-Positive T-LymphocytesTreatment OutcomeTreatment FailurePregnancy Complications, InfectiousIndinavirLost to Follow-UpDrug Resistance, Multiple, ViralAIDS Dementia ComplexBotswanaMalawiAdeninePyrimidinonesDidanosineCoinfectionLymphoma, AIDS-RelatedNelfinavirDrug MonitoringDirectly Observed TherapyDrug Administration ScheduleHIV Reverse TranscriptaseProspective StudiesAfrica South of the SaharaZambiaDideoxynucleosidesCote d'IvoireCytomegalovirus RetinitisRisk FactorsAfrica, SouthernTime FactorsRetrospective StudiesLipodystrophyCross-Sectional StudiesOxazinesTuberculosisHIV Wasting SyndromeHIV ProteaseDisease ProgressionAntitubercular AgentsFollow-Up StudiesDeveloping CountriesZimbabwePrevalenceVirus ReplicationPlasmaAIDS-Associated NephropathyCD4-CD8 RatioSaquinavirIncidenceLongitudinal StudiesHIV Long-Term SurvivorsCD8-Positive T-LymphocytesHaitiPregnancyCameroonAntiviral Agentspol Gene Products, Human Immunodeficiency VirusTreatment RefusalAcidosis, LacticThailandWithholding TreatmentSarcoma, KaposiKenyaLesothoLymphocyte CountHIV SeronegativityVirus LatencySubstance Abuse, Intravenous